Stuttgart Giant onion is a classic German variety. Mid-late, high-yielding — for annual and onion-sets growing. The bulb is flattened round, medium-sized, well-storing.
Growing
Sow in March–April, or onion sets in March. Plant spacing 8 cm, row spacing 25 cm.
Harvest in August–September. Ideal for winter storage. Uses: base ingredient for all cooking.
Product details
Seed informationUntreated
Life cycleOverwintering
Fruit/Flower colorBrown
Plant height (cm)30 cm
Growing timeLate
Row spacing (cm)30 cm
Plant spacing (cm)5 cm
Sowing timeFebruary, March
Sowing depth (cm)1 cm
Seed requirement (g/10 m²)8 g/10 m²
Seeds per gram250
Avg. germination time (days)14 days
Optimal germination temp. (°C)10 °C
Harvest time (flowering time for flower seeds)September